add a copy menu button at folder view too

app/src/main/java/com/simplemobiletools/gallery/activities/MainActivity.java

@@ -31,8 +31,10 @@ import com.simplemobiletools.gallery.Constants;
 import com.simplemobiletools.gallery.R;
 import com.simplemobiletools.gallery.Utils;
 import com.simplemobiletools.gallery.adapters.DirectoryAdapter;
+import com.simplemobiletools.gallery.asynctasks.CopyTask;
 import com.simplemobiletools.gallery.asynctasks.GetDirectoriesAsynctask;
 import com.simplemobiletools.gallery.dialogs.ChangeSorting;
+import com.simplemobiletools.gallery.dialogs.CopyDialog;
 import com.simplemobiletools.gallery.dialogs.RenameDirectoryDialog;
 import com.simplemobiletools.gallery.models.Directory;
 
@@ -40,6 +42,7 @@ import org.jetbrains.annotations.NotNull;
 
 import java.io.File;
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.HashSet;
 import java.util.List;
 import java.util.Set;
@@ -49,7 +52,8 @@ import butterknife.ButterKnife;
 
 public class MainActivity extends SimpleActivity
         implements AdapterView.OnItemClickListener, GridView.MultiChoiceModeListener, GridView.OnTouchListener,
-        SwipeRefreshLayout.OnRefreshListener, ChangeSorting.ChangeDialogListener, GetDirectoriesAsynctask.GetDirectoriesListener {
+        SwipeRefreshLayout.OnRefreshListener, ChangeSorting.ChangeDialogListener, GetDirectoriesAsynctask.GetDirectoriesListener,
+        CopyTask.CopyDoneListener {
     @BindView(R.id.directories_grid) GridView mGridView;
     @BindView(R.id.directories_holder) SwipeRefreshLayout mSwipeRefreshLayout;
 
@@ -315,6 +319,26 @@ public class MainActivity extends SimpleActivity
         });
     }
 
+    private void displayCopyDialog() {
+        final List<File> files = new ArrayList<>();
+        final SparseBooleanArray items = mGridView.getCheckedItemPositions();
+        final int cnt = items.size();
+        for (int i = 0; i < cnt; i++) {
+            if (items.valueAt(i)) {
+                final int id = items.keyAt(i);
+                final File dir = new File(mDirs.get(id).getPath());
+                files.addAll(Arrays.asList(dir.listFiles()));
+            }
+        }
+
+        new CopyDialog(this, files, this, new CopyDialog.OnCopyListener() {
+            @Override
+            public void onSuccess() {
+
+            }
+        });
+    }
+
     private boolean isPickImageIntent(Intent intent) {
         return isPickIntent(intent) && (hasImageContentData(intent) || isImageType(intent));
     }
@@ -480,6 +504,9 @@ public class MainActivity extends SimpleActivity
                 unhideFolders();
                 mode.finish();
                 return true;
+            case R.id.cab_copy:
+                displayCopyDialog();
+                return true;
             default:
                 return false;
         }
@@ -562,4 +589,14 @@ public class MainActivity extends SimpleActivity
         mGridView.setOnTouchListener(this);
         mGridView.setChoiceMode(GridView.CHOICE_MODE_MULTIPLE_MODAL);
     }
+
+    @Override
+    public void copySucceeded(@NotNull File destinationDir) {
+
+    }
+
+    @Override
+    public void copyFailed() {
+
+    }
 }

app/src/main/res/menu/directories_cab.xml

@@ -21,6 +21,10 @@
         android:icon="@mipmap/unhide"
         android:title="@string/unhide_folder"
         app:showAsAction="ifRoom"/>
+    <item
+        android:id="@+id/cab_copy"
+        android:title="@string/copy_move"
+        app:showAsAction="never"/>
     <item
         android:id="@+id/cab_delete"
         android:icon="@mipmap/delete"